A device for detecting the skewness of a skewed rotor core

Abstract

This utility model relates to the field of iron core tilt detection technology, and in particular to a device for detecting the tilt of a skewed rotor iron core. The technical solution includes: a base frame, a support mechanism mounted on the base frame, a drive mechanism mounted on the support mechanism, and an iron core to be inspected mounted on the drive mechanism; a first detection mechanism and a second detection mechanism are respectively mounted on both sides of the support mechanism. The first detection mechanism is used to detect the included angle of the aluminum groove edge of the iron core to be inspected, and the second detection mechanism is used to detect the cleanliness of the aluminum groove of the iron core to be inspected. This utility model effectively solves the problems of traditional detection methods, such as the inability to detect 100% accuracy, the inability to detect embedded scrap and abnormal tilting in the middle section of the iron core, low production efficiency, and high labor intensity.

Description

Technical Field

[0001] This utility model relates to the field of iron core tilt detection technology, specifically a device for detecting the tilt of a skewed rotor iron core. Background Technology

[0002] With the rapid development of the new energy vehicle industry, the quality of the motor, the "heart" of a car, has become particularly important. The iron core, as a core component of the motor, plays a crucial role in its quality and production efficiency. Among these, cast aluminum rotor cores hold a significant market share, and their key quality characteristic, skewness, directly affects the motor's operating performance.

[0003] Current inspection methods cannot achieve 100% inspection, making it difficult to effectively detect whether scrap is trapped in the core slots or to monitor abnormal twisting in the middle section of the core. Any quality issues can easily lead to batch defects. Furthermore, traditional inspection methods struggle to meet the demands of rapid production cycles, resulting in low production efficiency and high labor intensity for employees while ensuring product quality.

[0004] To address this problem, a device for detecting the tilt of a skewed rotor core is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a device for detecting the tilt of a skewed rotor core, which has the advantage of 100% detection and calculation of the core slots and tilt through a camera. It effectively solves the problems of traditional detection methods, such as the inability to detect 100% of the material, the inability to detect scrap material and abnormal tilt in the middle section of the core, as well as low production efficiency and high labor intensity.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a skew rotor core tilt detection device, comprising a base frame, a support mechanism mounted on the base frame, a drive mechanism mounted on the support mechanism, and a core to be inspected mounted on the drive mechanism;

[0007] The support mechanism is equipped with a first detection mechanism and a second detection mechanism on both sides. The first detection mechanism is used to detect the included angle of the edge line of the aluminum core channel to be inspected, and the second detection mechanism is used to detect the cleanliness of the aluminum core channel to be inspected.

[0008] Preferably, the support mechanism includes a support frame, with reserved slots on both sides of the support frame, and a limit frame installed in the reserved slots. The limit frame is used to guide the horizontal displacement of the first detection mechanism and the second detection mechanism.

[0009] A positioning frame is installed on the support frame, and a reserved hole for installing the drive mechanism is opened on the support frame inside the positioning frame.

[0010] When the above technical solution is adopted, the cooperation between the limiting frame and the reserved slot realizes the precise guidance of the horizontal displacement of the first detection mechanism and the second detection mechanism, the setting of the positioning frame and the reserved hole realizes the stable installation of the drive mechanism, and the support mechanism has the function of stable support for each component of the detection device and displacement guidance of the detection mechanism, ensuring the accuracy of the mechanism position during the detection process.

[0011] Preferably, the first detection mechanism includes a first slider, on which a first groove is provided, and the first slider can be displaced in the horizontal direction through the cooperation of the first groove and the limiting frame;

[0012] A first camera is movably mounted on the first slider. The first camera is used to detect the edge line of the aluminum groove at the bottom of the iron core to be inspected.

[0013] A first upright is fixedly mounted on the first slider, a first mounting bracket is mounted on the first upright, and a second camera is movably mounted on the first mounting bracket. The second camera is used to detect the edge line of the aluminum channel at the top of the iron core to be inspected.

[0014] When the above technical solution is adopted, the first slider realizes the horizontal position adjustment of the first detection mechanism through the sliding cooperation between the first slide groove and the limiting frame. The movable mounting structure of the first camera and the second camera realizes the synchronous image acquisition of the aluminum groove edge line at the upper and lower ends of the iron core. The first detection mechanism has the ability to accurately detect the torsion angle based on the position data of the upper and lower edge lines, ensuring the accuracy of the slope value calculation.

[0015] Preferably, the second detection mechanism includes a second slider, on which a second groove is provided, and the second slider can be displaced in the horizontal direction through the cooperation of the second groove and the limiting frame;

[0016] A second upright is fixedly installed on the second slider, a second mounting bracket is installed on the second upright, and a third camera is provided on the second mounting bracket. The third camera is used to detect the cleanliness of the aluminum core groove to be inspected. A rotating shaft is installed on the third camera, and the third camera is rotatably installed with the second mounting bracket through the rotating shaft.

[0017] When the above technical solution is adopted, the second slider realizes the horizontal position adjustment of the second detection mechanism through the cooperation of the second slide groove and the limit frame, and the third camera realizes the adaptation to the twist angle of the iron core through the angle adjustment of the rotating shaft. The second detection mechanism has the function of all-round image detection of the waste, foreign objects and area in the aluminum channel, and can identify aluminum channel defects with 100% accuracy.

[0018] Preferably, the base frame includes a base plate, on which two upright plates are mounted, and a first adjusting cylinder and a second adjusting cylinder are rotatably mounted on the two upright plates respectively;

[0019] The piston ends of the first and second adjusting cylinders, which are away from the vertical plate, are respectively connected to the first and second sliders. The first and second adjusting cylinders are used to push the first and second sliders to move horizontally along the limiting frame.

[0020] When the above technical solution is adopted, the piston extension and retraction of the first and second adjusting cylinders drive the first and second sliders to move along the limit frame, realizing the automatic adjustment of the horizontal position of the detection mechanism. The base frame has the function of quickly adjusting the position of the detection camera according to the iron core diameter, which improves the device's adaptability to products of different specifications.

[0021] Preferably, the driving mechanism includes a drive motor, which is fixedly installed at the bottom of the support frame. The transmission end of the drive motor passes through a reserved hole on the support frame and is connected to a reducer. A clamping frame is installed at the transmission end of the reducer. The clamping frame is used to clamp the iron core to be inspected. The outer wall of the clamping frame is in dynamic contact with the inner wall of the positioning frame.

[0022] When the above technical solution is adopted, the drive motor drives the clamping frame to achieve 360° rotation of the iron core through the reducer. The dynamic contact between the positioning frame and the clamping frame ensures the axial positioning accuracy of the iron core. The drive mechanism has the function of stably clamping the iron core and driving it to rotate at a uniform speed, which provides a motion basis for the full circumference detection and slope calculation of the aluminum channel, and ensures the continuity and accuracy of the detection process.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] This utility model achieves 100% automated detection of waste material and inclination in the iron core slot holes by setting a first detection mechanism and a second detection mechanism on both sides of the support mechanism. The first detection mechanism uses a camera to detect the included angle of the aluminum groove edge of the iron core to be inspected, and the second detection mechanism uses a camera to detect the cleanliness of the aluminum groove. Together with the drive mechanism, the iron core to be inspected is rotated, thus achieving the detection effect of 100% automated detection of waste material and inclination in the iron core slot holes.

[0025] This invention, through the linkage structure of the base frame, support mechanism and drive mechanism, enables the iron core to be inspected to rotate 360° in the horizontal direction during the inspection process. With the synchronous inspection of the two sides, it achieves the effect of covering the entire circumference of the aluminum groove of the iron core, accurately identifying the inclusion of scrap and the abnormal twisting of the middle section, and solves the problem that traditional inspection methods cannot fully inspect and locate defects in the middle section. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the base frame structure of this utility model;

[0028] Figure 3This is a schematic diagram of the support mechanism structure of this utility model;

[0029] Figure 4 This is a schematic diagram of the drive mechanism structure of this utility model;

[0030] Figure 5 This is a schematic diagram of the first detection mechanism of this utility model;

[0031] Figure 6 This is a schematic diagram of the second detection mechanism of this utility model.

[0032] In the diagram: 1. Base frame; 11. Base plate; 12. Vertical plate; 13. First adjusting cylinder; 14. Second adjusting cylinder; 2. Drive mechanism; 21. Drive motor; 22. Reducer; 23. Clamping frame; 3. Support mechanism; 31. Support frame; 311. Reserved slot; 32. Positioning frame; 33. Limiting frame; 4. First detection mechanism; 41. First slider; 411. First slide groove; 42. First camera; 43. First upright; 44. First mounting frame; 45. Second camera; 5. Second detection mechanism; 51. Second slider; 511. Second slide groove; 52. Second upright; 53. Second mounting frame; 54. Third camera; 541. Rotating shaft; 6. Iron core to be inspected. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Example 1

[0035] like Figures 1 to 6 As shown, one embodiment of this utility model is provided: a skew rotor core skew detection device, including a base frame 1, a support mechanism 3 installed on the base frame 1, a drive mechanism 2 installed on the support mechanism 3, and a core 6 to be inspected installed on the drive mechanism 2.

[0036] The support mechanism 3 is equipped with a first detection mechanism 4 and a second detection mechanism 5 on both sides. The first detection mechanism 4 is used to detect the included angle of the aluminum channel edge of the iron core 6 to be inspected, and the second detection mechanism 5 is used to detect the cleanliness of the aluminum channel of the iron core 6 to be inspected.

[0037] Specifically, by setting a first detection mechanism 4 and a second detection mechanism 5 on both sides of the support mechanism 3, the first detection mechanism 4 uses a camera to detect the included angle of the aluminum groove edge of the iron core 6 to be inspected, and the second detection mechanism 5 uses a camera to detect the cleanliness of the aluminum groove. Together with the drive mechanism 2, the iron core 6 to be inspected is rotated, achieving 100% automated detection of waste material and inclination in the iron core groove hole.

[0038] This utility model, through the linkage structure of the base frame 1, support mechanism 3 and drive mechanism 2, enables the iron core 6 to be inspected to rotate 360° in the horizontal direction during the inspection process. With the synchronous inspection of the two side inspection mechanisms, it achieves the effect of covering the entire circumference of the iron core aluminum groove, accurately identifying the trapped scrap and the abnormal twisting of the middle section, and solves the problem that traditional inspection methods cannot fully inspect and locate defects in the middle section.

[0039] Example 2

[0040] To achieve stable installation of the horizontal displacement guidance and drive mechanism of the detection mechanism, such as Figure 2 , Figure 3 and Figure 5 and Figure 6 As shown, in this embodiment, the support mechanism 3 includes a support frame 31, and reserved slots 311 are respectively opened on both sides of the support frame 31. A limit frame 33 is installed in the reserved slot 311. The limit frame 33 is used to guide the displacement of the first detection mechanism 4 and the second detection mechanism 5 in the horizontal direction.

[0041] A positioning frame 32 is installed on the support frame 31, and a reserved hole for installing the drive mechanism 2 is provided on the support frame 31 inside the positioning frame 32.

[0042] Specifically, the cooperation between the limiting frame 33 and the reserved slot 311 enables precise guidance of the horizontal displacement of the first detection mechanism 4 and the second detection mechanism 5. The setting of the positioning frame 32 and the reserved hole enables the stable installation of the drive mechanism 2. The support mechanism 3 has the function of providing stable support for each component of the detection device and guiding the displacement of the detection mechanism, ensuring the accuracy of the mechanism position during the detection process.

[0043] Furthermore, the first detection mechanism 4 includes a first slider 41, on which a first groove 411 is provided. The first slider 41 can move horizontally through the cooperation of the first groove 411 and the limiting frame 33.

[0044] A first camera 42 is movably mounted on the first slider 41. The first camera 42 is used to detect the edge line of the aluminum channel at the bottom of the iron core 6 to be inspected.

[0045] A first upright rod 43 is fixedly installed on the first slider 41, a first mounting bracket 44 is installed on the first upright rod 43, and a second camera 45 is movably installed on the first mounting bracket 44. The second camera 45 is used to detect the edge line of the aluminum channel at the top of the iron core 6 to be inspected.

[0046] Specifically, the first slider 41 achieves horizontal position adjustment of the first detection mechanism 4 through the sliding cooperation between the first slide groove 411 and the limit frame 33. The movable mounting structure of the first camera 42 and the second camera 45 realizes synchronous image acquisition of the upper and lower aluminum groove edges of the iron core 6 to be inspected. The first detection mechanism 4 has the ability to accurately detect the torsional angle based on the position data of the upper and lower edge lines, ensuring the accuracy of the slope value calculation.

[0047] Both the first camera 42 and the second camera 45 can be mounted on the slider via X-axis and Y-axis adjustment brackets. The adjustment brackets may include a screw drive mechanism and can be used to finely adjust the horizontal position of the camera by rotating a handwheel to adapt to the iron core 6 of different diameters to be inspected.

[0048] Furthermore, the second detection mechanism 5 includes a second slider 51, on which a second groove 511 is provided. The second slider 51 can move horizontally through the cooperation of the second groove 511 and the limiting frame 33.

[0049] A second upright 52 is fixedly installed on the second slider 51. A second mounting bracket 53 is installed on the second upright 52. A third camera 54 is provided on the second mounting bracket 53. The third camera 54 is used to detect the cleanliness of the aluminum groove of the iron core 6 to be inspected. A rotating shaft 541 is installed on the third camera 54. The third camera 54 is rotatably installed with the second mounting bracket 53 through the rotating shaft 541.

[0050] Specifically, the second slider 51 achieves horizontal position adjustment of the second detection mechanism 5 through the cooperation of the second slide groove 511 and the limit frame 33, and the third camera 54 achieves adaptation to the torsion angle of the iron core 6 to be inspected through the angle adjustment of the rotating shaft 541. The second detection mechanism 5 has the function of all-round image detection of waste, foreign objects and area in the aluminum channel, and can identify aluminum channel defects with 100% accuracy.

[0051] The third camera 54 has an angle scale on its rotating shaft 541. The scale has an accuracy of 0.1°. The camera shooting angle can be manually adjusted according to the design tilt angle of the iron core 6 to be inspected, so as to ensure that the lens optical axis is perpendicular to the aluminum groove slope.

[0052] Furthermore, the base frame 1 includes a base plate 11, on which two upright plates 12 are mounted, and a first adjusting cylinder 13 and a second adjusting cylinder 14 are rotatably mounted on the two upright plates 12 respectively.

[0053] The piston ends of the first adjusting cylinder 13 and the second adjusting cylinder 14, which are away from the vertical plate 12, are respectively connected to the first slider 41 and the second slider 51. The first adjusting cylinder 13 and the second adjusting cylinder 14 are respectively used to push the first slider 41 and the second slider 51 to move horizontally along the limiting frame 33.

[0054] Specifically, the piston extension and retraction of the first adjusting cylinder 13 and the second adjusting cylinder 14 drive the first slider 41 and the second slider 51 to move along the limit frame 33, realizing the automatic adjustment of the horizontal position of the detection mechanism. The base frame 1 has the function of quickly adjusting the position of the detection camera according to the diameter of the iron core 6 to be inspected, which improves the device's adaptability to products of different specifications.

[0055] Both the first adjusting cylinder 13 and the second adjusting cylinder 14 are double-acting cylinders. The cylinder piston rod and the slider are connected by a joint bearing to avoid the lateral force generated when the cylinder extends or retracts, which would affect the slider's movement accuracy.

[0056] Example 3

[0057] To achieve stable clamping of the iron core and 360° rotation detection, such as Figure 4 As shown, in this embodiment, the drive mechanism 2 includes a drive motor 21, which is fixedly installed at the bottom of the support frame 31. The transmission end of the drive motor 21 passes through the reserved hole on the support frame 31 and is connected to a reducer 22. The transmission end of the reducer 22 is connected to a clamping frame 23, which is used to clamp the iron core 6 to be inspected. The outer wall of the clamping frame 23 is in dynamic contact with the inner wall of the positioning frame 32.

[0058] Specifically, the drive motor 21 drives the clamping frame 23 through the reducer 22 to achieve 360° rotation of the iron core 6 to be inspected. The dynamic contact between the positioning frame 32 and the clamping frame 23 ensures the axial positioning accuracy of the iron core. The drive mechanism 2 has the function of stably clamping the iron core and driving it to rotate at a uniform speed, providing a motion basis for the full circumference detection of the aluminum channel and the calculation of the slope, and ensuring the continuity and accuracy of the detection process.

[0059] When using this utility model, the iron core 6 to be inspected is fixed on the clamping frame 23 of the drive mechanism 2. Axial positioning is achieved through the dynamic contact between the inner wall of the positioning frame 32 and the outer wall of the clamping frame 23, ensuring that the axis of the iron core 6 to be inspected coincides with the transmission axis of the drive motor 21.

[0060] By extending and retracting the pistons of the first adjusting cylinder 13 and the second adjusting cylinder 14 on the base frame 1, the first slider 41 of the first detection mechanism 4 and the second slider 51 of the second detection mechanism 5 are pushed to move horizontally along the limiting frame 33 of the support mechanism 3, so that the first camera 42 and the second camera 45 are aligned with the aluminum grooves at the upper and lower ends of the iron core 6 to be inspected, and the third camera 54 is aligned with the detection area of ​​the aluminum groove.

[0061] The shooting angle of the third camera 54 is adjusted by the rotating shaft 541 of the second detection mechanism 5 to match the torsional angle of the iron core 6 to be inspected; at the same time, the movable mounting structure of the first camera 42 and the second camera 45 in the first detection mechanism 4 ensures that the lens is perpendicular to the aluminum groove detection surface.

[0062] Start the drive motor 21, which drives the iron core 6 to be inspected to rotate 360° horizontally via the reducer 22. Use the third camera 54 to capture images of the aluminum channel, detect the waste material and foreign objects in the channel and the area of ​​the aluminum channel. If the deviation between the measured area of ​​the aluminum channel and the area of ​​the standard model exceeds ±5%, it is judged as out of tolerance. If the area is out of tolerance or there are foreign objects, the system judges it as unqualified and alarms.

[0063] Once the aluminum channel passes inspection, the first camera 42 detects the same side edge of the bottom aluminum channel of the iron core 6 under inspection, and the second camera 45 detects the corresponding side edge of the top aluminum channel. Based on the position data of the two side edges, the included angle is calculated to obtain the twist angle value. The Hough transform algorithm is used to calculate the tilt angle. The upper and lower aluminum channel side edges are fitted with straight lines, and the twist angle is obtained by calculating the included angle of the two straight lines.

[0064] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0065] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for detecting the skewness of a skewed rotor core, comprising a base frame (1), a support mechanism (3) mounted on the base frame (1), a drive mechanism (2) mounted on the support mechanism (3), and a core (6) to be inspected mounted on the drive mechanism (2), characterized in that: The support mechanism (3) is equipped with a first detection mechanism (4) and a second detection mechanism (5) on both sides. The first detection mechanism (4) is used to detect the included angle of the aluminum groove edge of the iron core (6) to be inspected, and the second detection mechanism (5) is used to detect the cleanliness of the aluminum groove of the iron core (6) to be inspected.

2. The device for detecting the skewness of a torsion rotor core according to claim 1, characterized in that, The support mechanism (3) includes a support frame (31), and reserved slots (311) are respectively opened on both sides of the support frame (31). A limit frame (33) is installed in the reserved slot (311). The limit frame (33) is used to guide the displacement of the first detection mechanism (4) and the second detection mechanism (5) in the horizontal direction. A positioning frame (32) is installed on the support frame (31), and a reserved hole for installing the drive mechanism (2) is provided on the support frame (31) inside the positioning frame (32).

3. The skewness detection device for a torsion rotor core according to claim 1, characterized in that, The first detection mechanism (4) includes a first slider (41), on which a first groove (411) is provided. The first slider (41) can move horizontally through the cooperation of the first groove (411) and the limiting frame (33). A first camera (42) is movably mounted on the first slider (41), and the first camera (42) is used to detect the edge line of the aluminum groove at the bottom of the iron core (6) to be inspected; A first upright (43) is fixedly installed on the first slider (41), a first mounting bracket (44) is installed on the first upright (43), and a second camera (45) is movably installed on the first mounting bracket (44). The second camera (45) is used to detect the edge line of the aluminum channel at the top of the iron core (6) to be inspected.

4. The skewness detection device for a torsion rotor core according to claim 1, characterized in that, The second detection mechanism (5) includes a second slider (51), on which a second groove (511) is provided. The second slider (51) can move horizontally through the cooperation of the second groove (511) and the limiting frame (33). A second upright (52) is fixedly installed on the second slider (51), a second mounting bracket (53) is installed on the second upright (52), a third camera (54) is provided on the second mounting bracket (53), the third camera (54) is used to detect the cleanliness of the aluminum groove of the iron core (6) to be inspected, a rotating shaft (541) is installed on the third camera (54), and the third camera (54) is rotatably installed with the second mounting bracket (53) through the rotating shaft (541).

5. The skewness detection device for a torsion rotor core according to claim 1, characterized in that, The base frame (1) includes a base plate (11), on which two upright plates (12) are mounted. A first adjusting cylinder (13) and a second adjusting cylinder (14) are rotatably mounted on the two upright plates (12). The piston ends of the first adjusting cylinder (13) and the second adjusting cylinder (14) away from the vertical plate (12) are respectively connected to the first slider (41) and the second slider (51). The first adjusting cylinder (13) and the second adjusting cylinder (14) are respectively used to push the first slider (41) and the second slider (51) to move horizontally along the limiting frame (33).

6. The skewness detection device for a torsion rotor core according to claim 1, characterized in that, The drive mechanism (2) includes a drive motor (21), which is fixedly installed at the bottom of the support frame (31). The drive end of the drive motor (21) passes through the reserved hole on the support frame (31) and is connected to a reducer (22). A clamping frame (23) is installed at the top of the reducer (22). The clamping frame (23) is used to clamp the iron core (6) to be inspected. The outer wall of the clamping frame (23) is in dynamic contact with the inner wall of the positioning frame (32).

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